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Canadian application, no grantCanada

Steam generator

CA 2129158 A1 · Owner: Sylvester, Robert Leslie · Inventors: Wilson, Robert Mcconaughy; Johnson, Randall Clauser; Smith, Gregory Valdemar

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This patent discloses a secondary fluid supply system for a steam generator used in nuclear reactor power plants. The secondary fluid supply system comprises a secondary fluid (feedwater) inlet nozzle near the base of the steam generator shell, a feedwater riser pipe spaced between the shell of the steam generator and the tube bundle wrapper the upper end of the, feedwater riser pipe being connected to a distribution ring having a plurality of spray nozzles positioned in the recirculating pool above the top of the U-shaped heat exchanger tubes.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed July 29, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 1994
GrantedNo grant recorded
Term endedJuly 29, 2014
Patent numberCA 2129158 A1
Classification (IPC)F22D11/00 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 29, 1994Term endedJuly 29, 2014

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.